Wiater



w. PENDZIWIATEH.

LOCK.

APPLICATION FILED SEPT. 1B. I9I9.

1,33 1,781 Patented Feb. 24, 1920.

M 'III/Illa l Figi" ATTORNEY.

W. PENDZIWIATER.

LOCK.

APPLICATION FILED SEPT. 18, |919.

1,33 1,781 Patented Feb. 24,1920.

2 SHEETS-SHEET 2.

En; e 30 25,232; 7/ 6 /0 1e 2f Maz ,a2 3a l/l lll/ll; YIII/llll/lllllllllill/Illa VIII/[IIIA l 56 f6 5744 34 3S f7 ATTORNEY.

UNITED, STATES" PATENT OFFICE;

wAWnzENIEc PENDZIWIATER, .or PHILADELPHIA, PnNNsYLV,farma.

' Lock.

The principal object is to providev al lock of peculiar construction operable by a spe? cial key having wards engageable with the lock mechanism and which cannot beoper atedby a key of the ordinary type; This object is'attained bythe novel construction andl combination of parts hereinafter described and shown in the accompanying drawings, forming a material part of this disclosure, and in which-f Figure 1 is a plan view of avlock'niade in accordance withthe invention, parts being broken away in order to disclose the in-A terior.

Fig. 2 is a transverse sectionalview taken on line 2-2 of Figzrl.- Y,

Fig.` 3 p is a longitudinal sectional view taken on line 3- -3 of'Fig 1. I.v

Fig.V @L is a view showing thelock parts'k Y or secured to the' leaf 36 and substantiallyin a partially operated posItion,

Fig. 5 is asimilar view of the same showing the lever elements fully actuated, 'andA Fig. 6 is an enlarged fragmentary Vsectional'view showing the connection of-the key with kthe mechanism.` y Y Referring to the drawings Vin detail, the numeral 10 indicates a fragment of theV door, andll a jainb or casing against which the door makes contact whenin a closed position. A

keeper plate, having an offset portion 13, is Xed in the casing 11 by screws or vother like securing meansand extending out from thefront edge of the keeper plate 13 `are a pair of hook-like elements 14, adapted to pass through openings leaves.

specificati@ gf Letters Patent. Patntedjeb, 24,1920. Application measeinember 1s, 19219. serial No. 324,491@ n vpairhof spaced elongated fopenings" 21 adapted to receive the hook ,elementsv 1,4 when alined ,with4 the openings 15`lor` `to hold the saine engaged when the bolt` plate v is pressed yto one end, as shown in Figs. 1 and 4 this being'tlie locked position of the plate which isheld against the end wall by the bent end 22 of a flat spring 23,"encircling a ring24 fixedl between the inner and 65 outer. walls of the casing, the spring being secured upon a post 25 fixed in the casingl wall. n l a Pivoted upon a pin26 set in the casing isk a lever 27 of peculiar profile having at-7o its offset 'end30 a hook 2S, engageable with v a spring 29, the point of 'the lever being engageable in a recess 31 formed in the bolt plate'2() atA one end and into which it normally pressed by Vthe action of the spring 29. f Al similar recess 32 is formedfin theopposite end of the sliding bolt plate 20, kthe same being engageable by V aA projection 33 formed in the opposite end of the lever which has a "l'y shaped profile including a hook element v311 the purpose of which will be farther on described. This lever Ais held in position byiav leaf 36, fixed bythebolt 37, while upon the opposite side of the' 85 lever 27 is another rigid leaf 38, formed with,

coincident with it in profile, one of the wards'48 of the key entering between the I v i l v v V `Formedwiththe bolt plate 20is an anguV lar plate felelnentfll() cont'actab'le, when in a forward-positionfwith the lug 4:1, fixedto the casing cover 60, and which limits the motion of the b'oltplate.`

A key having a'stem 411 and a ring a5 is enterablel through the escutcheon plate 19, the outer end of thestem .containing a centralbored opening suited to receive a fixed post 216 set in the lower wall of the lock casing so vas to guide the key as it is entered, and

secured upon the stem 44 of the keyv is a guide ward 17 an unlatching ward 4:8., and

an actuating ward 19, the kward 47 when the key is in an entered position, normally resting 10 5 upon the upper surface of the late 36, while the ward 1S passes between t e leaves 36 and 38, engaging with the hook elements 34 of the lever, moving the same out of a locked position, while the lower ward /19 acl .P0 tuates the plate 4() moving it endwise and carrying the locking plate 20', thereby perfor mitting the hooks 14 pass out of the caslng.

When the key is turned in the lock, the lever 14 is turned on the post vor rivet 26 overcoming thepressure of the spring 29,

while the spring 23 moves the bolt plateY position, the stern of the.

by the pin 46 entering its several parts being formed by ordinary ress methods, easily assembled and read- `A 1 1y Vapplied in operative position. Y

' jHaving'thus described my invention Whatl Inclaimas new and desire to secure by Letters Patent, is-

'1'. 'In a lock of the class described, the combination with a hollow rectangular'casing 'having oneV or more elongated slots through its outer Wall, and a keeper plate having hook elements adapted to enter through thek mentioned slots, 4of a sliding,

boltjplate engageable with said hook elements', said bolt plate having recesses formed inits inner side, 'ineans iornormally pushing said hook elements into engagement, apivoted lever havinga point eng'ag'eable in one of the recesses, means forfno'rmally pressing id leverto cause engagement, a detent head ,'edat'the opposite end of said lever, a pair'of guides between which said lever operates, a" plateformed on said sliding bolt extendind'belowfsaid guide, and a key having Wards adapted to simultaneously release Said lever and-enge e with Seid Plat@ element whereby saidloc ing plate may bel Y moved into a re easing position.

2. In a lock ofthe "classil described, the

combination with a hollow cylindricalv Ine-f tallic casing having a pairrfof elongated slots in its outer Wall, a keeper plate, hook elements formed with said ydetent adapted to enter through said slots, abolt Vplate movable in said casing, said bolt plate having elongated slots alinable With the lirst namedslots and throughwhich said hooks may enter, an Ian ular plate formed with said'bolt/plate sl1da'ble on; the inner surface of said lock, easing..meaps in .said casing Vadapted `to push said bolt plate toward one end into alocking position, a lever adaptedto hold said bolt plate when in an engaged position, a hook plate ,endl formed on said lever, a key adapted to enter said casing-,said key having a Ward contactable with said yugular plates, whereby said lock plate maybe removed, and another Ward contactable with said pivoted iever whereby c it may be Withdrawnfrom contact with said bolt plate.

3.111 a lock k,of the class described, the combination Witllv'a hollow Are ctangular casing adapted t0 be. Secured rWithin the frame of a doo`r','fa keeper plate, hook extensions 'formedvon said keeper plate adapted toenter said lock casing,"a slidable bolt yplate engageable vvvitli said hook elements, means f0.1' `DQlnially vPushing; .Said Sliding' bolt plate into an' engaging position, Said' e011; ne@ having recesses formed. in; its inner si e, a lever pivoted in said casing, said lever having an offset portion terminating in acutev pintfadap'ted to enter one of said recesses, a T-shaped headformed et the, 'OPPQSfO u end ofV said lever, a projection at one end of said I shaped head envagea'ble' in the other of said recesses, a hooNv formedin the opposite end of 'said T shaped liead,a rigid guide for said, lever,- a spring Vadapted 'to press Said lever ihm ,engagement with Said bolt plate, and a key having'ivards adapted to engage said hook adapted to simultaneously 'release said lever and to'factuate said bolt plate.

,In testimony .whereof Iv my' Signe-ture AWrimz-einec, rarnziwnrre. 

